The radioactive decay has been measured as decay per second by becquerel (Bq).
Radioactive decay has been given as the loss of energy by the nucleus. The release of energy has been in the form of radiation. The varying energy radiations have been termed alpha decay, beta decay, gamma decay.
The decay has been performed by unstable nuclei with the emission of multiple particles. The decay unit has been given by Henri Becquerel. The unit has been the determination of the decay performed per second and has been given by becquerel (Bq).
Thus, the unit for the measurement of radioactive decay has been becquerel (Bq).
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